TurboDBDataReader.GetSchemaTable

Returns a DataTable, which describes the column meta data of the TurboDBDataReader.

public DataTable GetSchemaTable()

Return Value

A DataTable describing the structure of the current result set of the data reader.

Implements

IDataReader.GetSchemaTable

Exceptions

InvalidOperationException The TurboDBDataReader is closed.

Hints

Each row in the schema table describes one column in the result set. The schema table has these columns:

Name	Data Type	Description
ColumnName	string	The name of the column in the result set
Column Ordinal	int	The ordinal number of the column in the result set
ColumnSize	int	Maximum size of the data in the column
NumericPrecision	int	Numeric precision, if column data type is a real number
Numeric Scale	int	Number of digits to the right of the decimal separator (for real numbers)
DataType	Type	The .NET framework type of the column
ProviderType	TurboDBType	The TurboDB type of the column
IsLong	bool	True, if column is Blob or Memo
AllowDBNull	bool	True, if no value (i.e. a Null value) is allowed for the column
IsReadOnly	bool	True, if column must not be written to
IsRowVersion	bool	True, if column is of type AutoInc
IsUnique	bool	True, if there is a unique index on this column alone
IsKey	bool	True, if there is a unique index, whose fields are all in the result set and this column is one of them
BaseSchemaName	string	Always empty
BaseCatalogName	string	Always empty
BaseTableName	string	Name of database table, where this column is taken from
BaseColumnName	string	Name of this column in BaseTableName